Prepare for 2.2.1 release

Author: antonwolfy

CHANGELOG.md

@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.2.1] - 2026-05-11
+
+### Fixed
+* Removed `mkl` as runtime dependency to avoid possible `pip check` failures [gh-322](https://github.com/IntelPython/mkl_fft/pull/322)
+
 ## [2.2.0] - 2026-04-16
 
 ### Added

mkl_fft/_version.py

@@ -1 +1 @@
-__version__ = "2.2.0"
+__version__ = "2.2.1"